_____I saw the West Lake, I was struck by its beauty.
| A．The first time | B．For some time | C．For the first time | D．At the first time |
I want to buy a computer, but there is only one left in that shop, so I'll have to buy ______.
| A．one | B．it | C．that | D．them |
Mother insisted that the child's hands ______ before dinner.
| A．should wash | B．be washed |
| C．had been washed | D．would be washed |
Plants grow well ______ there is plenty of water and sunshine.
| A．which | B．in which | C．that | D．where |
—Did you write to Grace last summer?
—No, but I'll ______ her over Christmas vacation.
| A．be seen | B．have seen | C．be seeing | D．to see |
In summer people usually stay up late outside, ______ the cool air.
| A．enjoy | B．enjoying | C．to enjoy | D．enjoyed |